Nonleak seat and anchor for liner pumps



Y May 25, 1926.

C SPRAGUE ET AL NONLEAK SEAT AND ANCHO-R FOR LINER PUMPS Patented May 25, 1926.

UNlTED STATES i 1,585,482 PATnn'r reilen CHARLES SPRAGUE ANnrnANx srnneun, yorf:BAKnnsrrnnn,v Ciimronivmn.es-k i sIGNons or CNE-FOURTH To CHARLES nnADnn', or nnnnnsrnnn, 'muret-mm, AND ONE-FOURTH To nArHnEL n. CAnnnn, or MeKrrTraCK, CALIFORNIA.

rNOIBTIIIEAK SEAT AND ANCHOR FOR LINER PUMPS.

Application inea May 7,

Althoughour present invention relates to a non-leaking seat and anchor for liner pumps, the purpose of our invention may be broadly statedV as Vrelating generally' to the simplification and iinproven'ient of liner pumps, especially liner pumps for use in deep wells, such as oil wells. c

It is an object of our invention to provide simple and improved means for securing and anchoring a pump at the lower end ot' and within a pipe through which the oil or other liquid pui'nped may be withdrawn from a well, and for this purpose we prefer a lsimplihled construction such that the inen-V tioned )ipe and the pump` which is introduced therethrough may both be supported entirely from the top of the well.

lt is a further object of our invention to provide means Comprising a very gradually tapered collar and a single anchoring ring adapted to effect, a wedging engagement therewith, our preferred construction being such as to obviate the use of soft metal, such as lead orbabbitt, and being such as to effect a tight joint, and nevertheless such as shall permit of a disengagement of the anchoring elements when necessary.

It is 'a lfurther object of our invention to provide suitable means for seating and un seating our anchor ring, which may or may not be made integral with ay plug vadapted to receive blows from a. seating hammer and an unseating hammer such as may be comprised in van organization of our preferred construction.

It is a further object of our invention to improve upon and simplify the construction of stand valves employed in liner-pumps.

It is a further object of our invention to rovide an im roved Junio housinflr section and an improved shoe, kor other meansv to prevent the loss of parts in case of accident or disconnection, and adapted to be employed in conjunction with a taperedanchorreceiving collar of our preferred design.

V-Other objects of our invention will appear from the following description of preferred embodiments thereof talren in connection. with the appended claims and the accompanying drawings, in which-- Figure 1 is a vertical section, with parts broken away, adapted to show various parts of our device in their assembled krelationship and in the relative positions which theyV 1923. sei-inno. 637,293.

of our invention will be readily understoooll from a detailed description kof the embodiments shown in the drawing, in which it will be understood thatl is a section of the main or exit pipe through which oil or other liquid muy be delivered, this pipe being adapted to lit Lwithin' a wellcusing (not "'slioi'n) and rconnected byn'ieans such as ythe s hub or coupling il with a tapered pump-supportingcollar ywith which is connected, by

means such as thccoupling 2, a pump housing Ll.. rl`h`e housing section l 11e-.ay be of any usual construction but, under certain condic, it advantageous to provide it with a's'hoe or reducero adapted tocarry an yextension 6, the shoe or reducer 5 being suitable to prevent the loss of pump parts in case of accident ordisconnection.

Under other conditions than those referred to, we may employ a pump housing section 4a, provided with perforations or apertures 7, through which oil or other liquid may enter the pump housing and wey may, in any case, substitute a pin 8 for other means of preventinga loss ofl pump parts in case of accident or disconnection.

It being anobject ofy Qur present 'invern tions we find tion to `simplify theconstruetion by which a liner pump is anchored, we have preferred,

to employ forthis purpose ak single anchoringV element,` which is preferably of hard metal. From one point ofview our construction here referred to may be regarded,y

as an improvement upon the construction disclosed in patent to Drader and Candee, No. 1,151,765, August 31, 1915, in whichr a plurality of anchoring rings of soft metal, such as lead, are employed. Soft met-al being liable to easy deformation, and liable to become unseated as av result of wear or vibration, we prefer to form our anchoring ring of ka metal atleast as hard as copper or a mild steel; and it is desirable that the collar 3, which may be tapered throughout only a portion of its length as shown, with which the'anchor ring v9 may cooperate, should be l provided with an accurate and only a very gradual taper, in order that the ring 9, from which the parts of our liner pump are supported, may be very firmly lodged or seated by a wedging action therein.

It being understood that our anchoring ring is to be seated or `unseated by the bumping or hannnering action of movable elements which may be associated with the sucker rod ot our pump, we may form the said ring 9 either as a separate element as shown in Figure 2, or as an integral part ot' a threaded bump plug l0, as shown in Fig. l, whose lower extension is adapted to support a removable working barrel of any usual er preferred construct-ion.

Before the mentioned removable working barrel is inserted in a well, our pump is completed by the introduction ot a valved plunger, which may be ot any usual or preferred construction, except that we prefer to associate therewith suitable inea-ns 'tor the seating and unseating, as occasion may require', ot' the mentioned anchor ringl 9. For the purpose ot seating this anchor ring we may provide the lowermost section ot' the suelrer rod 19 with means such as the seating hammer 20, adapted to contact with the bump plug l0. with which, as mentioned above, our anchor ring Ina-y be associated;

"and to facilitate the unseating oit the mentioned anchor ring as occasion may require we employ the upper portion of the valve cage 2l which provides a hammer 22. rEhe hammer 2O may be provided by a coupling which connects the lower sections et the sucker rod together.

The plunger 26, provided with the bottom bushing 27 and the top bushing 28, carrying a valve seat, adapted to receive a ball cheek valve', may be of anyl usual or preferred construction, and these parts last mentioned constitute no part of our present invention.

From the foregoing itl will be appreciated that we have provided a simplified and improved pump construction by which the working barrel et a liner pump is adapted to be removably and yet securely suspended within a tapered collar, which in turn may be suspended by an oil-delivery pipe extending to the top of a well, and that we have also provided simple and suitable means to effect a seating or an unseating et our anchoring or securing ring, the novel features referred to being adapted to cooperate with additional improvements tending to the retention of the parts ol a liner pump in their intended relationships, and to other sinipliication in the construction and operation thereof.

It will, however, be obvious that various features of our present invention may be independently used, and that various modifications may be made therein without de parting` from the spirit or the scope thereof as the same is indicated above and in the following claim.

that we claim is:

il pump comprising a pump housing having a taper d seat formed on its interior surface, a barrel, a part resting upon the top edge ot' the barrel, ay plug extending through said part and having a portion threaded into the barrel thus fastening the Apart to the barrel and permitting the barrel to be suspended by the plug, said part being adapted to seatupon said tapered seat, a plunger re` ciprocable in said barrel, a sucker rod secured to the plunger and extending upwardly through the plug, means permitting fluid to pass upwardly through the plug upon the upward stroke of the plunger, and means providing hammers .upon the sucker rod above and below the plug for seating and unseating said part. l

In testimony whereof we have Signed our names to this speeiiieation;

CHAS SPRAGUE. FRANK SPRAGUE.

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